{ "constructorBlob": [ { "engines": [ "blink", "gecko", "webkit" ], "filename": "api/Blob.json", "name": "Blob", "slug": "API/Blob/Blob", "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/Blob/Blob", "summary": "The Blob() constructor returns a new Blob object. The content of the blob consists of the concatenation of the values given in the parameter array.", "support": { "chrome": { "version_added": "20" }, "chrome_android": "mirror", "deno": { "version_added": "1.0" }, "edge": { "version_added": "12" }, "firefox": { "version_added": "13", "notes": "Before Firefox 16, the second parameter, when set to null or undefined, leads to an error instead of being handled as an empty dictionary." }, "firefox_android": "mirror", "ie": { "version_added": "10", "notes": "IE10 throws InvalidStateError with a TypedArray argument. Consider using MSBuilder as an alternative." }, "nodejs": { "version_added": "15.7.0" }, "oculus": "mirror", "opera": { "version_added": "12" }, "opera_android": { "version_added": "12" }, "safari": { "version_added": "6" }, "safari_ios": "mirror", "samsunginternet_android": "mirror", "webview_android": "mirror", "edge_blink": { "version_added": "79" } }, "caniuse": { "feature": "blobbuilder", "title": "Blob constructing" }, "title": "Blob: Blob() constructor" } ], "dom-blob-arraybuffer": [ { "engines": [ "blink", "gecko", "webkit" ], "filename": "api/Blob.json", "name": "arrayBuffer", "slug": "API/Blob/arrayBuffer", "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/Blob/arrayBuffer", "summary": "The arrayBuffer() method in the Blob interface returns a Promise that resolves with the contents of the blob as binary data contained in an ArrayBuffer.", "support": { "chrome": { "version_added": "76" }, "chrome_android": "mirror", "deno": { "version_added": "1.0" }, "edge": "mirror", "firefox": { "version_added": "69" }, "firefox_android": "mirror", "ie": { "version_added": false }, "nodejs": { "version_added": "15.7.0" }, "oculus": "mirror", "opera": "mirror", "opera_android": "mirror", "safari": { "version_added": "14" }, "safari_ios": "mirror", "samsunginternet_android": "mirror", "webview_android": "mirror", "edge_blink": { "version_added": "79" } }, "title": "Blob: arrayBuffer() method" } ], "dfn-size": [ { "engines": [ "blink", "gecko", "webkit" ], "filename": "api/Blob.json", "name": "size", "slug": "API/Blob/size", "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/Blob/size", "summary": "The Blob interface's size property returns the size of the Blob or File in bytes.", "support": { "chrome": { "version_added": "5" }, "chrome_android": "mirror", "deno": { "version_added": "1.0" }, "edge": { "version_added": "12" }, "firefox": { "version_added": "4" }, "firefox_android": "mirror", "ie": { "version_added": "10" }, "nodejs": { "version_added": "15.7.0" }, "oculus": "mirror", "opera": { "version_added": "11" }, "opera_android": { "version_added": "11" }, "safari": { "version_added": "6" }, "safari_ios": "mirror", "samsunginternet_android": "mirror", "webview_android": "mirror", "edge_blink": { "version_added": "79" } }, "title": "Blob: size property" } ], "dfn-slice": [ { "engines": [ "blink", "gecko", "webkit" ], "filename": "api/Blob.json", "name": "slice", "slug": "API/Blob/slice", "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/Blob/slice", "summary": "The Blob interface's slice() method creates and returns a new Blob object which contains data from a subset of the blob on which it's called.", "support": { "chrome": [ { "version_added": "21" }, { "version_added": "5", "version_removed": "25", "prefix": "webkit" } ], "chrome_android": "mirror", "deno": { "version_added": "1.0" }, "edge": { "version_added": "12" }, "firefox": [ { "version_added": "13", "notes": "Before Firefox 12, there was a bug that affected the behavior of Blob.slice(); it did not work for start and end positions outside the range of signed 64-bit values; it has now been fixed to support unsigned 64-bit values." }, { "version_added": "5", "version_removed": "13", "prefix": "moz" } ], "firefox_android": "mirror", "ie": { "version_added": "10" }, "nodejs": { "version_added": "15.7.0" }, "oculus": "mirror", "opera": { "version_added": "12" }, "opera_android": { "version_added": "12" }, "safari": [ { "version_added": "7" }, { "version_added": "6", "version_removed": "7", "prefix": "webkit" } ], "safari_ios": "mirror", "samsunginternet_android": "mirror", "webview_android": "mirror", "edge_blink": [ { "version_added": "79" }, { "version_added": false, "version_removed": "25", "prefix": "webkit" } ] }, "title": "Blob: slice() method" } ], "dom-blob-stream": [ { "engines": [ "blink", "gecko", "webkit" ], "filename": "api/Blob.json", "name": "stream", "slug": "API/Blob/stream", "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/Blob/stream", "summary": "The Blob interface's stream() method returns a ReadableStream which upon reading returns the data contained within the Blob.", "support": { "chrome": { "version_added": "76" }, "chrome_android": "mirror", "deno": { "version_added": "1.0" }, "edge": "mirror", "firefox": { "version_added": "69" }, "firefox_android": "mirror", "ie": { "version_added": false }, "nodejs": { "version_added": "15.7.0" }, "oculus": "mirror", "opera": "mirror", "opera_android": "mirror", "safari": { "version_added": "14.1" }, "safari_ios": "mirror", "samsunginternet_android": "mirror", "webview_android": "mirror", "edge_blink": { "version_added": "79" } }, "title": "Blob: stream() method" } ], "dom-blob-text": [ { "engines": [ "blink", "gecko", "webkit" ], "filename": "api/Blob.json", "name": "text", "slug": "API/Blob/text", "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/Blob/text", "summary": "The text() method in the Blob interface returns a Promise that resolves with a string containing the contents of the blob, interpreted as UTF-8.", "support": { "chrome": { "version_added": "76" }, "chrome_android": "mirror", "deno": { "version_added": "1.0" }, "edge": "mirror", "firefox": { "version_added": "69" }, "firefox_android": "mirror", "ie": { "version_added": false }, "nodejs": { "version_added": "15.7.0" }, "oculus": "mirror", "opera": "mirror", "opera_android": "mirror", "safari": { "version_added": "14" }, "safari_ios": "mirror", "samsunginternet_android": "mirror", "webview_android": "mirror", "edge_blink": { "version_added": "79" } }, "title": "Blob: text() method" } ], "dfn-type": [ { "engines": [ "blink", "gecko", "webkit" ], "filename": "api/Blob.json", "name": "type", "slug": "API/Blob/type", "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/Blob/type", "summary": "The type property of a Blob object returns the MIME type of the file.", "support": { "chrome": { "version_added": "5" }, "chrome_android": "mirror", "deno": { "version_added": "1.0" }, "edge": { "version_added": "12" }, "firefox": { "version_added": "4" }, "firefox_android": "mirror", "ie": { "version_added": "10" }, "nodejs": { "version_added": "15.7.0" }, "oculus": "mirror", "opera": { "version_added": "11" }, "opera_android": { "version_added": "11" }, "safari": { "version_added": "6" }, "safari_ios": "mirror", "samsunginternet_android": "mirror", "webview_android": "mirror", "edge_blink": { "version_added": "79" } }, "title": "Blob: type property" }, { "engines": [ "blink", "gecko", "webkit" ], "filename": "api/File.json", "name": "type", "slug": "API/File/type", "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/File/type", "summary": "Returns the media type (MIME) of the file represented by a File object.", "support": { "chrome": { "version_added": "13" }, "chrome_android": "mirror", "deno": { "version_added": "1.0" }, "edge": { "version_added": "12" }, "firefox": { "version_added": "3.6" }, "firefox_android": "mirror", "ie": { "version_added": "10" }, "oculus": "mirror", "opera": { "version_added": "15" }, "opera_android": { "version_added": "14" }, "safari": { "version_added": "8" }, "safari_ios": "mirror", "samsunginternet_android": "mirror", "webview_android": { "version_added": "37" }, "edge_blink": { "version_added": "79" } }, "title": "File: type property" } ], "blob-section": [ { "engines": [ "blink", "gecko", "webkit" ], "filename": "api/Blob.json", "name": "Blob", "slug": "API/Blob", "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/Blob", "summary": "The Blob object represents a blob, which is a file-like object of immutable, raw data; they can be read as text or binary data, or converted into a ReadableStream so its methods can be used for processing the data.", "support": { "chrome": { "version_added": "5" }, "chrome_android": "mirror", "deno": { "version_added": "1.0" }, "edge": { "version_added": "12" }, "firefox": { "version_added": "4" }, "firefox_android": "mirror", "ie": { "version_added": "10" }, "nodejs": [ { "version_added": "18.0.0" }, { "version_added": "15.7.0", "version_removed": "18.0.0", "alternative_name": "buffer.Blob", "notes": [ "Experimental implementation.", "Must be imported using require('buffer').Blob or import { Blob } from 'buffer'." ] } ], "oculus": "mirror", "opera": { "version_added": "11" }, "opera_android": { "version_added": "11" }, "safari": { "version_added": "6" }, "safari_ios": "mirror", "samsunginternet_android": "mirror", "webview_android": "mirror", "edge_blink": { "version_added": "79" } }, "title": "Blob" } ], "file-constructor": [ { "engines": [ "blink", "gecko", "webkit" ], "filename": "api/File.json", "name": "File", "slug": "API/File/File", "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/File/File", "summary": "The File() constructor creates a new File object instance.", "support": { "chrome": { "version_added": "38" }, "chrome_android": "mirror", "deno": { "version_added": "1.0" }, "edge": "mirror", "firefox": { "version_added": "28" }, "firefox_android": "mirror", "ie": { "version_added": false }, "oculus": "mirror", "opera": "mirror", "opera_android": "mirror", "safari": { "version_added": "10.1" }, "safari_ios": "mirror", "samsunginternet_android": "mirror", "webview_android": "mirror", "edge_blink": { "version_added": "79" } }, "title": "File: File() constructor" } ], "dfn-lastModified": [ { "engines": [ "blink", "gecko", "webkit" ], "filename": "api/File.json", "name": "lastModified", "slug": "API/File/lastModified", "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/File/lastModified", "summary": "The File.lastModified read-only property provides the last modified date of the file as the number of milliseconds since the Unix epoch (January 1, 1970 at midnight). Files without a known last modified date return the current date.", "support": { "chrome": { "version_added": "13" }, "chrome_android": "mirror", "deno": { "version_added": "1.0" }, "edge": { "version_added": "18" }, "firefox": { "version_added": "15" }, "firefox_android": "mirror", "ie": { "version_added": false }, "oculus": "mirror", "opera": { "version_added": "15" }, "opera_android": { "version_added": "14" }, "safari": { "version_added": "10" }, "safari_ios": "mirror", "samsunginternet_android": "mirror", "webview_android": { "version_added": "37" }, "edge_blink": { "version_added": "79" } }, "title": "File: lastModified property" } ], "dfn-name": [ { "engines": [ "blink", "gecko", "webkit" ], "filename": "api/File.json", "name": "name", "slug": "API/File/name", "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/File/name", "summary": "Returns the name of the file represented by a File object. For security reasons, the path is excluded from this property.", "support": { "chrome": { "version_added": "13" }, "chrome_android": "mirror", "deno": { "version_added": "1.0" }, "edge": { "version_added": "12" }, "firefox": { "version_added": "3.6" }, "firefox_android": "mirror", "ie": { "version_added": "10" }, "oculus": "mirror", "opera": { "version_added": "15" }, "opera_android": { "version_added": "14" }, "safari": { "version_added": "8" }, "safari_ios": "mirror", "samsunginternet_android": "mirror", "webview_android": { "version_added": "37" }, "edge_blink": { "version_added": "79" } }, "title": "File: name property" } ], "file-section": [ { "engines": [ "blink", "gecko", "webkit" ], "filename": "api/File.json", "name": "File", "slug": "API/File", "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/File", "summary": "The File interface provides information about files and allows JavaScript in a web page to access their content.", "support": { "chrome": { "version_added": "13" }, "chrome_android": "mirror", "deno": { "version_added": "1.0" }, "edge": { "version_added": "12" }, "firefox": [ { "version_added": "7" }, { "version_added": "3", "version_removed": "7", "notes": "Non-standard implementation." } ], "firefox_android": "mirror", "ie": { "version_added": "10" }, "oculus": "mirror", "opera": { "version_added": "11.5" }, "opera_android": { "version_added": "11.5" }, "safari": { "version_added": "4" }, "safari_ios": "mirror", "samsunginternet_android": "mirror", "webview_android": { "version_added": "37" }, "edge_blink": { "version_added": "79" } }, "title": "File" } ], "dfn-item": [ { "engines": [ "blink", "gecko", "webkit" ], "filename": "api/FileList.json", "name": "item", "slug": "API/FileList/item", "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/FileList/item", "summary": "The item() method of the FileList API returns a File object representing the file at the specified index in the file list.", "support": { "chrome": { "version_added": "2" }, "chrome_android": "mirror", "deno": { "version_added": false }, "edge": { "version_added": "12" }, "firefox": { "version_added": "3" }, "firefox_android": "mirror", "ie": { "version_added": "10" }, "oculus": "mirror", "opera": { "version_added": "12.1" }, "opera_android": { "version_added": "12.1" }, "safari": { "version_added": "4" }, "safari_ios": "mirror", "samsunginternet_android": "mirror", "webview_android": { "version_added": "37" }, "edge_blink": { "version_added": "79" } }, "title": "FileList: item() method" } ], "dfn-length": [ { "engines": [ "blink", "gecko", "webkit" ], "filename": "api/FileList.json", "name": "length", "slug": "API/FileList/length", "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/FileList/length", "summary": "The read-only FileList length property returns the number of files in the FileList.", "support": { "chrome": { "version_added": "2" }, "chrome_android": "mirror", "deno": { "version_added": false }, "edge": { "version_added": "12" }, "firefox": { "version_added": "3" }, "firefox_android": "mirror", "ie": { "version_added": "10" }, "oculus": "mirror", "opera": { "version_added": "11.1" }, "opera_android": { "version_added": "11.1" }, "safari": { "version_added": "4" }, "safari_ios": "mirror", "samsunginternet_android": "mirror", "webview_android": { "version_added": "37" }, "edge_blink": { "version_added": "79" } }, "title": "FileList: length property" } ], "filelist-section": [ { "engines": [ "blink", "gecko", "webkit" ], "filename": "api/FileList.json", "name": "FileList", "slug": "API/FileList", "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/FileList", "summary": "An object of this type is returned by the files property of the HTML element; this lets you access the list of files selected with the element. It's also used for a list of files dropped into web content when using the drag and drop API; see the DataTransfer object for details on this usage.", "support": { "chrome": { "version_added": "2" }, "chrome_android": "mirror", "deno": { "version_added": false }, "edge": { "version_added": "12" }, "firefox": { "version_added": "3" }, "firefox_android": "mirror", "ie": { "version_added": "10" }, "oculus": "mirror", "opera": { "version_added": "11.1" }, "opera_android": { "version_added": "11.1" }, "safari": { "version_added": "4" }, "safari_ios": "mirror", "samsunginternet_android": "mirror", "webview_android": { "version_added": "37" }, "edge_blink": { "version_added": "79" } }, "title": "FileList" } ], "filereaderConstrctr": [ { "engines": [ "blink", "gecko", "webkit" ], "filename": "api/FileReader.json", "name": "FileReader", "slug": "API/FileReader/FileReader", "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/FileReader/FileReader", "summary": "The FileReader() constructor creates a new FileReader.", "support": { "chrome": { "version_added": "6" }, "chrome_android": "mirror", "deno": { "version_added": "1.3" }, "edge": { "version_added": "12" }, "firefox": { "version_added": "3.6" }, "firefox_android": { "version_added": "32" }, "ie": { "version_added": "10" }, "oculus": "mirror", "opera": { "version_added": "12.1" }, "opera_android": { "version_added": "12.1" }, "safari": { "version_added": "6" }, "safari_ios": "mirror", "samsunginternet_android": "mirror", "webview_android": { "version_added": "3" }, "edge_blink": { "version_added": "79" } }, "title": "FileReader: FileReader() constructor" } ], "abort": [ { "engines": [ "blink", "gecko", "webkit" ], "filename": "api/FileReader.json", "name": "abort", "slug": "API/FileReader/abort", "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/FileReader/abort", "summary": "The abort method aborts the read operation. Upon return, the readyState will be DONE.", "support": { "chrome": { "version_added": "6" }, "chrome_android": "mirror", "deno": { "version_added": "1.3" }, "edge": { "version_added": "12" }, "firefox": { "version_added": "3.6" }, "firefox_android": { "version_added": "32" }, "ie": { "version_added": "10" }, "oculus": "mirror", "opera": { "version_added": "11" }, "opera_android": { "version_added": "11" }, "safari": { "version_added": "6" }, "safari_ios": "mirror", "samsunginternet_android": "mirror", "webview_android": { "version_added": "3" }, "edge_blink": { "version_added": "79" } }, "title": "FileReader: abort() method" } ], "dfn-abort-event": [ { "engines": [ "blink", "gecko", "webkit" ], "filename": "api/FileReader.json", "name": "abort_event", "slug": "API/FileReader/abort_event", "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/FileReader/abort_event", "summary": "The abort event is fired when a read has been aborted: for instance because the program called FileReader.abort().", "support": { "chrome": { "version_added": "6" }, "chrome_android": "mirror", "deno": { "version_added": "1.3" }, "edge": { "version_added": "12" }, "firefox": { "version_added": "3.6" }, "firefox_android": { "version_added": "32" }, "ie": { "version_added": "10" }, "oculus": "mirror", "opera": { "version_added": "11" }, "opera_android": { "version_added": "11" }, "safari": { "version_added": "6" }, "safari_ios": "mirror", "samsunginternet_android": "mirror", "webview_android": { "version_added": "3" }, "edge_blink": { "version_added": "79" } }, "title": "FileReader: abort event" } ], "dfn-onabort": [ { "engines": [ "blink", "gecko", "webkit" ], "filename": "api/FileReader.json", "name": "abort_event", "slug": "API/FileReader/abort_event", "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/FileReader/abort_event", "summary": "The abort event is fired when a read has been aborted: for instance because the program called FileReader.abort().", "support": { "chrome": { "version_added": "6" }, "chrome_android": "mirror", "deno": { "version_added": "1.3" }, "edge": { "version_added": "12" }, "firefox": { "version_added": "3.6" }, "firefox_android": { "version_added": "32" }, "ie": { "version_added": "10" }, "oculus": "mirror", "opera": { "version_added": "11" }, "opera_android": { "version_added": "11" }, "safari": { "version_added": "6" }, "safari_ios": "mirror", "samsunginternet_android": "mirror", "webview_android": { "version_added": "3" }, "edge_blink": { "version_added": "79" } }, "title": "FileReader: abort event" } ], "dom-filereader-error": [ { "engines": [ "blink", "gecko", "webkit" ], "filename": "api/FileReader.json", "name": "error", "slug": "API/FileReader/error", "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/FileReader/error", "summary": "The FileReader error property returns the error that occurred while reading the file.", "support": { "chrome": { "version_added": "6" }, "chrome_android": "mirror", "deno": { "version_added": "1.3" }, "edge": { "version_added": "12" }, "firefox": { "version_added": "3.6", "notes": [ "Before Firefox 13, the error property returned a FileError object.", "From Firefox 13 to Firefox 58, the error property returned a DOMError object.", "From Firefox 58, the error property returns a DOMException object." ] }, "firefox_android": { "version_added": "32", "notes": [ "From Firefox 32 to Firefox 58, the error property returned a DOMError object.", "From Firefox 58, the error property returns a DOMException object." ] }, "ie": { "version_added": "10", "notes": "The error property returns a DOMError object." }, "oculus": "mirror", "opera": { "version_added": "11" }, "opera_android": { "version_added": "11" }, "safari": { "version_added": "6", "notes": "The error property returns a DOMError object." }, "safari_ios": "mirror", "samsunginternet_android": "mirror", "webview_android": { "version_added": "3" }, "edge_blink": { "version_added": "79" } }, "title": "FileReader: error property" } ], "dfn-error-event": [ { "engines": [ "blink", "gecko", "webkit" ], "filename": "api/FileReader.json", "name": "error_event", "slug": "API/FileReader/error_event", "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/FileReader/error_event", "summary": "The error event is fired when the read failed due to an error (for example, because the file was not found or not readable).", "support": { "chrome": { "version_added": "6" }, "chrome_android": "mirror", "deno": { "version_added": "1.3" }, "edge": { "version_added": "12" }, "firefox": { "version_added": "3.6" }, "firefox_android": { "version_added": "32" }, "ie": { "version_added": "10" }, "oculus": "mirror", "opera": { "version_added": "11" }, "opera_android": { "version_added": "11" }, "safari": { "version_added": "6" }, "safari_ios": "mirror", "samsunginternet_android": "mirror", "webview_android": { "version_added": "3" }, "edge_blink": { "version_added": "79" } }, "title": "FileReader: error event" } ], "dfn-onerror": [ { "engines": [ "blink", "gecko", "webkit" ], "filename": "api/FileReader.json", "name": "error_event", "slug": "API/FileReader/error_event", "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/FileReader/error_event", "summary": "The error event is fired when the read failed due to an error (for example, because the file was not found or not readable).", "support": { "chrome": { "version_added": "6" }, "chrome_android": "mirror", "deno": { "version_added": "1.3" }, "edge": { "version_added": "12" }, "firefox": { "version_added": "3.6" }, "firefox_android": { "version_added": "32" }, "ie": { "version_added": "10" }, "oculus": "mirror", "opera": { "version_added": "11" }, "opera_android": { "version_added": "11" }, "safari": { "version_added": "6" }, "safari_ios": "mirror", "samsunginternet_android": "mirror", "webview_android": { "version_added": "3" }, "edge_blink": { "version_added": "79" } }, "title": "FileReader: error event" } ], "dfn-load-event": [ { "engines": [ "blink", "gecko", "webkit" ], "filename": "api/FileReader.json", "name": "load_event", "slug": "API/FileReader/load_event", "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/FileReader/load_event", "summary": "The load event is fired when a file has been read successfully.", "support": { "chrome": { "version_added": "6" }, "chrome_android": "mirror", "deno": { "version_added": "1.3" }, "edge": { "version_added": "12" }, "firefox": { "version_added": "3.6" }, "firefox_android": { "version_added": "32" }, "ie": { "version_added": "10" }, "oculus": "mirror", "opera": { "version_added": "11" }, "opera_android": { "version_added": "11" }, "safari": { "version_added": "6" }, "safari_ios": "mirror", "samsunginternet_android": "mirror", "webview_android": { "version_added": "3" }, "edge_blink": { "version_added": "79" } }, "title": "FileReader: load event" } ], "dfn-onload": [ { "engines": [ "blink", "gecko", "webkit" ], "filename": "api/FileReader.json", "name": "load_event", "slug": "API/FileReader/load_event", "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/FileReader/load_event", "summary": "The load event is fired when a file has been read successfully.", "support": { "chrome": { "version_added": "6" }, "chrome_android": "mirror", "deno": { "version_added": "1.3" }, "edge": { "version_added": "12" }, "firefox": { "version_added": "3.6" }, "firefox_android": { "version_added": "32" }, "ie": { "version_added": "10" }, "oculus": "mirror", "opera": { "version_added": "11" }, "opera_android": { "version_added": "11" }, "safari": { "version_added": "6" }, "safari_ios": "mirror", "samsunginternet_android": "mirror", "webview_android": { "version_added": "3" }, "edge_blink": { "version_added": "79" } }, "title": "FileReader: load event" } ], "dfn-loadend-event": [ { "engines": [ "blink", "gecko", "webkit" ], "filename": "api/FileReader.json", "name": "loadend_event", "slug": "API/FileReader/loadend_event", "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/FileReader/loadend_event", "summary": "The loadend event is fired when a file read has completed, successfully or not.", "support": { "chrome": { "version_added": "6" }, "chrome_android": "mirror", "deno": { "version_added": "1.3" }, "edge": { "version_added": "12" }, "firefox": { "version_added": "3.6" }, "firefox_android": { "version_added": "32" }, "ie": { "version_added": "10" }, "oculus": "mirror", "opera": { "version_added": "11" }, "opera_android": { "version_added": "11" }, "safari": { "version_added": "6" }, "safari_ios": "mirror", "samsunginternet_android": "mirror", "webview_android": { "version_added": "3" }, "edge_blink": { "version_added": "79" } }, "title": "FileReader: loadend event" } ], "dfn-onloadend": [ { "engines": [ "blink", "gecko", "webkit" ], "filename": "api/FileReader.json", "name": "loadend_event", "slug": "API/FileReader/loadend_event", "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/FileReader/loadend_event", "summary": "The loadend event is fired when a file read has completed, successfully or not.", "support": { "chrome": { "version_added": "6" }, "chrome_android": "mirror", "deno": { "version_added": "1.3" }, "edge": { "version_added": "12" }, "firefox": { "version_added": "3.6" }, "firefox_android": { "version_added": "32" }, "ie": { "version_added": "10" }, "oculus": "mirror", "opera": { "version_added": "11" }, "opera_android": { "version_added": "11" }, "safari": { "version_added": "6" }, "safari_ios": "mirror", "samsunginternet_android": "mirror", "webview_android": { "version_added": "3" }, "edge_blink": { "version_added": "79" } }, "title": "FileReader: loadend event" } ], "dfn-loadstart-event": [ { "engines": [ "blink", "gecko", "webkit" ], "filename": "api/FileReader.json", "name": "loadstart_event", "slug": "API/FileReader/loadstart_event", "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/FileReader/loadstart_event", "summary": "The loadstart event is fired when a file read operation has begun.", "support": { "chrome": { "version_added": "6" }, "chrome_android": "mirror", "deno": { "version_added": "1.3" }, "edge": { "version_added": "12" }, "firefox": [ { "version_added": "79" }, { "version_added": "3.6", "version_removed": "79", "partial_implementation": true, "notes": "loadstart event dispatches synchronously (should be asynchronously as per spec)." } ], "firefox_android": [ { "version_added": "79" }, { "version_added": "32", "version_removed": "79", "partial_implementation": true, "notes": "loadstart event dispatches synchronously (should be asynchronously as per spec)." } ], "ie": { "version_added": "10" }, "oculus": "mirror", "opera": { "version_added": "11" }, "opera_android": { "version_added": "11" }, "safari": { "version_added": "6" }, "safari_ios": "mirror", "samsunginternet_android": "mirror", "webview_android": { "version_added": "3" }, "edge_blink": { "version_added": "79" } }, "title": "FileReader: loadstart event" } ], "dfn-onloadstart": [ { "engines": [ "blink", "gecko", "webkit" ], "filename": "api/FileReader.json", "name": "loadstart_event", "slug": "API/FileReader/loadstart_event", "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/FileReader/loadstart_event", "summary": "The loadstart event is fired when a file read operation has begun.", "support": { "chrome": { "version_added": "6" }, "chrome_android": "mirror", "deno": { "version_added": "1.3" }, "edge": { "version_added": "12" }, "firefox": [ { "version_added": "79" }, { "version_added": "3.6", "version_removed": "79", "partial_implementation": true, "notes": "loadstart event dispatches synchronously (should be asynchronously as per spec)." } ], "firefox_android": [ { "version_added": "79" }, { "version_added": "32", "version_removed": "79", "partial_implementation": true, "notes": "loadstart event dispatches synchronously (should be asynchronously as per spec)." } ], "ie": { "version_added": "10" }, "oculus": "mirror", "opera": { "version_added": "11" }, "opera_android": { "version_added": "11" }, "safari": { "version_added": "6" }, "safari_ios": "mirror", "samsunginternet_android": "mirror", "webview_android": { "version_added": "3" }, "edge_blink": { "version_added": "79" } }, "title": "FileReader: loadstart event" } ], "dfn-progress-event": [ { "engines": [ "blink", "gecko", "webkit" ], "filename": "api/FileReader.json", "name": "progress_event", "slug": "API/FileReader/progress_event", "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/FileReader/progress_event", "summary": "The progress event is fired periodically as the FileReader reads data.", "support": { "chrome": { "version_added": "6" }, "chrome_android": "mirror", "deno": { "version_added": "1.3" }, "edge": { "version_added": "12" }, "firefox": { "version_added": "3.6" }, "firefox_android": { "version_added": "32" }, "ie": { "version_added": "10" }, "oculus": "mirror", "opera": { "version_added": "11" }, "opera_android": { "version_added": "11" }, "safari": { "version_added": "6" }, "safari_ios": "mirror", "samsunginternet_android": "mirror", "webview_android": { "version_added": "3" }, "edge_blink": { "version_added": "79" } }, "title": "FileReader: progress event" } ], "dfn-onprogress": [ { "engines": [ "blink", "gecko", "webkit" ], "filename": "api/FileReader.json", "name": "progress_event", "slug": "API/FileReader/progress_event", "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/FileReader/progress_event", "summary": "The progress event is fired periodically as the FileReader reads data.", "support": { "chrome": { "version_added": "6" }, "chrome_android": "mirror", "deno": { "version_added": "1.3" }, "edge": { "version_added": "12" }, "firefox": { "version_added": "3.6" }, "firefox_android": { "version_added": "32" }, "ie": { "version_added": "10" }, "oculus": "mirror", "opera": { "version_added": "11" }, "opera_android": { "version_added": "11" }, "safari": { "version_added": "6" }, "safari_ios": "mirror", "samsunginternet_android": "mirror", "webview_android": { "version_added": "3" }, "edge_blink": { "version_added": "79" } }, "title": "FileReader: progress event" } ], "readAsArrayBuffer": [ { "engines": [ "blink", "gecko", "webkit" ], "filename": "api/FileReader.json", "name": "readAsArrayBuffer", "slug": "API/FileReader/readAsArrayBuffer", "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/FileReader/readAsArrayBuffer", "summary": "The FileReader interface's readAsArrayBuffer() method is used to start reading the contents of a specified Blob or File. When the read operation is finished, the readyState becomes DONE, and the loadend is triggered. At that time, the result attribute contains an ArrayBuffer representing the file's data.", "support": { "chrome": { "version_added": "6" }, "chrome_android": "mirror", "deno": { "version_added": "1.3" }, "edge": { "version_added": "12" }, "firefox": { "version_added": "3.6" }, "firefox_android": { "version_added": "32" }, "ie": { "version_added": "10" }, "oculus": "mirror", "opera": { "version_added": "12" }, "opera_android": { "version_added": "12" }, "safari": { "version_added": "6" }, "safari_ios": "mirror", "samsunginternet_android": "mirror", "webview_android": { "version_added": "3" }, "edge_blink": { "version_added": "79" } }, "title": "FileReader: readAsArrayBuffer() method" } ], "readAsBinaryString": [ { "engines": [ "blink", "gecko", "webkit" ], "filename": "api/FileReader.json", "name": "readAsBinaryString", "slug": "API/FileReader/readAsBinaryString", "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/FileReader/readAsBinaryString", "summary": "The readAsBinaryString method is used to start reading the contents of the specified Blob or File. When the read operation is finished, the readyState becomes DONE, and the FileReader.loadend_event is triggered. At that time, the result attribute contains the raw binary data from the file.", "support": { "chrome": { "version_added": "6" }, "chrome_android": "mirror", "deno": { "version_added": "1.3" }, "edge": { "version_added": "12" }, "firefox": { "version_added": "3.6" }, "firefox_android": { "version_added": "32" }, "ie": { "version_added": false }, "oculus": "mirror", "opera": { "version_added": "11" }, "opera_android": { "version_added": "11" }, "safari": { "version_added": "6" }, "safari_ios": "mirror", "samsunginternet_android": "mirror", "webview_android": { "version_added": "3" }, "edge_blink": { "version_added": "79" } }, "title": "FileReader: readAsBinaryString() method" } ], "readAsDataURL": [ { "engines": [ "blink", "gecko", "webkit" ], "filename": "api/FileReader.json", "name": "readAsDataURL", "slug": "API/FileReader/readAsDataURL", "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/FileReader/readAsDataURL", "summary": "The readAsDataURL method is used to read the contents of the specified Blob or File. When the read operation is finished, the readyState becomes DONE, and the loadend is triggered. At that time, the result attribute contains the data as a data: URL representing the file's data as a base64 encoded string.", "support": { "chrome": { "version_added": "6" }, "chrome_android": "mirror", "deno": { "version_added": "1.3" }, "edge": { "version_added": "12" }, "firefox": { "version_added": "3.6" }, "firefox_android": { "version_added": "32", "notes": "Using the camera in Android 8.x raises an exception. See bug 1511083." }, "ie": { "version_added": "10" }, "oculus": "mirror", "opera": { "version_added": "11" }, "opera_android": { "version_added": "11" }, "safari": { "version_added": "6" }, "safari_ios": "mirror", "samsunginternet_android": "mirror", "webview_android": { "version_added": "3" }, "edge_blink": { "version_added": "79" } }, "title": "FileReader: readAsDataURL() method" } ], "readAsDataText": [ { "engines": [ "blink", "gecko", "webkit" ], "filename": "api/FileReader.json", "name": "readAsText", "slug": "API/FileReader/readAsText", "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/FileReader/readAsText", "summary": "The readAsText() method is used to read the contents of the specified Blob or File. When the read operation is complete, the readyState is changed to DONE, the loadend event is triggered, and the result property contains the contents of the file as a text string.", "support": { "chrome": { "version_added": "6" }, "chrome_android": "mirror", "deno": { "version_added": "1.3" }, "edge": { "version_added": "12" }, "firefox": { "version_added": "3.6" }, "firefox_android": { "version_added": "32" }, "ie": { "version_added": "10" }, "oculus": "mirror", "opera": { "version_added": "11" }, "opera_android": { "version_added": "11" }, "safari": { "version_added": "6" }, "safari_ios": "mirror", "samsunginternet_android": "mirror", "webview_android": { "version_added": "3" }, "edge_blink": { "version_added": "79" } }, "title": "FileReader: readAsText() method" } ], "dom-filereader-readystate": [ { "engines": [ "blink", "gecko", "webkit" ], "filename": "api/FileReader.json", "name": "readyState", "slug": "API/FileReader/readyState", "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/FileReader/readyState", "summary": "The FileReader readyState property provides the current state of the reading operation a FileReader is in. A FileReader exists in one of the following states:", "support": { "chrome": { "version_added": "6" }, "chrome_android": "mirror", "deno": { "version_added": "1.3" }, "edge": { "version_added": "12" }, "firefox": { "version_added": "3.6" }, "firefox_android": { "version_added": "32" }, "ie": { "version_added": "10" }, "oculus": "mirror", "opera": { "version_added": "11" }, "opera_android": { "version_added": "11" }, "safari": { "version_added": "6" }, "safari_ios": "mirror", "samsunginternet_android": "mirror", "webview_android": { "version_added": "3" }, "edge_blink": { "version_added": "79" } }, "title": "FileReader: readyState property" } ], "dom-filereader-result": [ { "engines": [ "blink", "gecko", "webkit" ], "filename": "api/FileReader.json", "name": "result", "slug": "API/FileReader/result", "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/FileReader/result", "summary": "The FileReader result property returns the file's contents. This property is only valid after the read operation is complete, and the format of the data depends on which of the methods was used to initiate the read operation.", "support": { "chrome": { "version_added": "6" }, "chrome_android": "mirror", "deno": { "version_added": "1.3" }, "edge": { "version_added": "12" }, "firefox": { "version_added": "3.6" }, "firefox_android": { "version_added": "32" }, "ie": { "version_added": "10" }, "oculus": "mirror", "opera": { "version_added": "11" }, "opera_android": { "version_added": "11" }, "safari": { "version_added": "6" }, "safari_ios": "mirror", "samsunginternet_android": "mirror", "webview_android": { "version_added": "3" }, "edge_blink": { "version_added": "79" } }, "title": "FileReader: result property" } ], "APIASynch": [ { "engines": [ "blink", "gecko", "webkit" ], "filename": "api/FileReader.json", "name": "FileReader", "slug": "API/FileReader", "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/FileReader", "summary": "The FileReader object lets web applications asynchronously read the contents of files (or raw data buffers) stored on the user's computer, using File or Blob objects to specify the file or data to read.", "support": { "chrome": { "version_added": "6" }, "chrome_android": "mirror", "deno": { "version_added": "1.0" }, "edge": { "version_added": "12" }, "firefox": { "version_added": "3.6", "notes": "Before Firefox 4, Blob parameters were File parameters." }, "firefox_android": { "version_added": "32" }, "ie": { "version_added": "10" }, "oculus": "mirror", "opera": { "version_added": "11" }, "opera_android": { "version_added": "11" }, "safari": { "version_added": "6" }, "safari_ios": "mirror", "samsunginternet_android": "mirror", "webview_android": { "version_added": "3" }, "edge_blink": { "version_added": "79" } }, "title": "FileReader" } ], "filereadersyncConstrctr": [ { "engines": [ "blink", "gecko", "webkit" ], "filename": "api/FileReaderSync.json", "name": "FileReaderSync", "slug": "API/FileReaderSync/FileReaderSync", "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/FileReaderSync/FileReaderSync", "summary": "The FileReaderSync() constructor creates a new FileReaderSync.", "support": { "chrome": { "version_added": "7" }, "chrome_android": "mirror", "deno": { "version_added": false }, "edge": { "version_added": "12" }, "firefox": { "version_added": "8" }, "firefox_android": "mirror", "ie": { "version_added": "10" }, "oculus": "mirror", "opera": { "version_added": "12.1" }, "opera_android": { "version_added": "12.1" }, "safari": { "version_added": "6" }, "safari_ios": "mirror", "samsunginternet_android": "mirror", "webview_android": "mirror", "edge_blink": { "version_added": "79" } }, "title": "FileReaderSync: FileReaderSync() constructor" } ], "readAsArrayBufferSyncSection": [ { "engines": [ "blink", "gecko", "webkit" ], "filename": "api/FileReaderSync.json", "name": "readAsArrayBuffer", "slug": "API/FileReaderSync/readAsArrayBuffer", "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/FileReaderSync/readAsArrayBuffer", "summary": "The readAsArrayBuffer() method of the FileReaderSync interface allows to read File or Blob objects in a synchronous way into an ArrayBuffer. This interface is only available in workers as it enables synchronous I/O that could potentially block.", "support": { "chrome": { "version_added": "9" }, "chrome_android": "mirror", "deno": { "version_added": false }, "edge": { "version_added": "12" }, "firefox": { "version_added": "8" }, "firefox_android": "mirror", "ie": { "version_added": "10" }, "oculus": "mirror", "opera": { "version_added": "12.1" }, "opera_android": { "version_added": "12.1" }, "safari": { "version_added": "6" }, "safari_ios": "mirror", "samsunginternet_android": "mirror", "webview_android": "mirror", "edge_blink": { "version_added": "79" } }, "title": "FileReaderSync: readAsArrayBuffer() method" } ], "readAsDataURLSync-section": [ { "engines": [ "blink", "gecko", "webkit" ], "filename": "api/FileReaderSync.json", "name": "readAsDataURL", "slug": "API/FileReaderSync/readAsDataURL", "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/FileReaderSync/readAsDataURL", "summary": "The readAsDataURL() method of the FileReaderSync interface allows to read File or Blob objects in a synchronous way into a string representing a data URL. This interface is only available in workers as it enables synchronous I/O that could potentially block.", "support": { "chrome": { "version_added": "7" }, "chrome_android": "mirror", "deno": { "version_added": false }, "edge": { "version_added": "12" }, "firefox": { "version_added": "8" }, "firefox_android": "mirror", "ie": { "version_added": "10" }, "oculus": "mirror", "opera": { "version_added": "12.1" }, "opera_android": { "version_added": "12.1" }, "safari": { "version_added": "6" }, "safari_ios": "mirror", "samsunginternet_android": "mirror", "webview_android": "mirror", "edge_blink": { "version_added": "79" } }, "title": "FileReaderSync: readAsDataURL() method" } ], "readAsTextSync": [ { "engines": [ "blink", "gecko", "webkit" ], "filename": "api/FileReaderSync.json", "name": "readAsText", "slug": "API/FileReaderSync/readAsText", "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/FileReaderSync/readAsText", "summary": "The readAsText() method of the FileReaderSync interface allows to read File or Blob objects in a synchronous way into a string. This interface is only available in workers as it enables synchronous I/O that could potentially block.", "support": { "chrome": { "version_added": "7" }, "chrome_android": "mirror", "deno": { "version_added": false }, "edge": { "version_added": "12" }, "firefox": { "version_added": "8" }, "firefox_android": "mirror", "ie": { "version_added": "10" }, "oculus": "mirror", "opera": { "version_added": "12.1" }, "opera_android": { "version_added": "12.1" }, "safari": { "version_added": "6" }, "safari_ios": "mirror", "samsunginternet_android": "mirror", "webview_android": "mirror", "edge_blink": { "version_added": "79" } }, "title": "FileReaderSync: readAsText() method" } ], "FileReaderSync": [ { "engines": [ "blink", "gecko", "webkit" ], "filename": "api/FileReaderSync.json", "name": "FileReaderSync", "slug": "API/FileReaderSync", "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/FileReaderSync", "summary": "The FileReaderSync interface allows to read File or Blob objects synchronously.", "support": { "chrome": { "version_added": "7" }, "chrome_android": "mirror", "deno": { "version_added": false }, "edge": { "version_added": "12" }, "firefox": { "version_added": "8" }, "firefox_android": "mirror", "ie": { "version_added": "10" }, "oculus": "mirror", "opera": { "version_added": "12.1" }, "opera_android": { "version_added": "12.1" }, "safari": { "version_added": "6" }, "safari_ios": "mirror", "samsunginternet_android": "mirror", "webview_android": "mirror", "edge_blink": { "version_added": "79" } }, "caniuse": { "feature": "filereadersync", "title": "FileReaderSync" }, "title": "FileReaderSync" } ], "dfn-createObjectURL": [ { "engines": [ "blink", "gecko", "webkit" ], "filename": "api/URL.json", "name": "createObjectURL_static", "slug": "API/URL/createObjectURL_static", "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/URL/createObjectURL_static", "summary": "The URL.createObjectURL() static method creates a string containing a URL representing the object given in the parameter.", "support": { "chrome": { "version_added": "19" }, "chrome_android": "mirror", "deno": { "version_added": "1.9" }, "edge": { "version_added": "12" }, "firefox": { "version_added": "19", "notes": "createObjectURL() is no longer available within the context of a ServiceWorker." }, "firefox_android": "mirror", "ie": { "version_added": "10", "notes": "If the underlying object does not have a content type set, using this URL as the src of an img tag fails intermittently with error DOM7009." }, "nodejs": { "version_added": "16.7.0" }, "oculus": "mirror", "opera": "mirror", "opera_android": "mirror", "safari": { "version_added": "6" }, "safari_ios": "mirror", "samsunginternet_android": "mirror", "webview_android": "mirror", "edge_blink": { "version_added": "79" } }, "title": "URL: createObjectURL() static method" } ], "dfn-revokeObjectURL": [ { "engines": [ "blink", "gecko", "webkit" ], "filename": "api/URL.json", "name": "revokeObjectURL_static", "slug": "API/URL/revokeObjectURL_static", "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/URL/revokeObjectURL_static", "summary": "The URL.revokeObjectURL() static method releases an existing object URL which was previously created by calling URL.createObjectURL().", "support": { "chrome": { "version_added": "19" }, "chrome_android": "mirror", "deno": { "version_added": "1.9" }, "edge": { "version_added": "12" }, "firefox": { "version_added": "19", "notes": "revokeObjectURL() is no longer available within the context of a ServiceWorker." }, "firefox_android": "mirror", "ie": { "version_added": "10" }, "nodejs": { "version_added": "16.7.0" }, "oculus": "mirror", "opera": "mirror", "opera_android": "mirror", "safari": { "version_added": "6" }, "safari_ios": "mirror", "samsunginternet_android": "mirror", "webview_android": "mirror", "edge_blink": { "version_added": "79" } }, "title": "URL: revokeObjectURL() static method" } ] }